In
Extruded steel profiles a vast range of standard profiles are available. The
material used in such Steel shapes profiles can be carbon steel as well as
stainless steel. Extruded steel shapes gives its users a number of
advantages that includes reduction in the needs of machining, finishing and
scraps etc.
The steel profiles are typically hot extruded to the required
specifications. In a steel mill, roller tables are used to for
transportation of steel profiles between the workstations. A typical
production line includes a double roller table between an extruder and the
packaging machine. It is on the first roller table that extruded steel
profiles get cut with shears. While on the second table, a hot saw is used
to finish the cutting of the profiles. The process is shown in this diagram:
Design of the Extruded Steel Profiles
Following fundamental points are to be given preference while designing the
shape of extruded steel profiles in the most economical manner.
- Facilitation of a smooth steel flow through the extruded shape die,
Total avoidance of sharp edges.
- Achieving precise section reproduction, define the rounded corners
along with fillets.
- For designing a groove, ratio of depth to width to be kept very low.
A one-to-one ratio is to be maintained.
- For accomplishing the desired non-symmetrical shape, all hole
requirements is to be eliminated.
Alloys Extruded for Steel profiles
The following table gives a brief list of the typical alloys of Carbon and
Alloy steel as well as the Stainless steel.
| Alloys of Carbon and
Alloy steel |
Alloys of Stainless steel |
| C-1008 |
302 |
| C-1010 |
303 |
| C-1018 |
304 |
| C-1020 |
304 L |
| C-1025 |
304 H |
| C-1030 |
309 |
| C-1035 |
310 |
| C-1040 |
316 |
| C-1045 |
317 |
| C-1050 |
321 |
Popular Shapes of the Extruded steel profiles
Some of the popular shapes found for the extruded steel profiles include
I-beams, Tees, channels, angles etc.
Application of the Extruded Profiles
Hot extruded steel shapes are popular in material handling industry. Two
popular applications include thick web and flanged structural steel shapes
using extruded carbon steel channels and I-beams for use in fork lift mast
rails.
Other industries where extruded Steel profiles are in great demand includes:
- Machine builders
- Automotive
- Hardware
- Earth moving equipment
- Ordinance
- Sporting goods
- Industrial furnaces
- Construction
- Marine, railroads and aerospace
Popular Extruded Steel Profiles
- Extruded steel cabinet Hinges
They can be directly used or as an effective replacement.
- Extruded steel Tube
They can be used as sliding Door tracks.
|
Advantages of Extruded Steel Profiles
There are multi various advantages of using Extruded steel profiles. The
major ones are highlighted here.
- Flexibility
- Vast range of shapes and sizes
- Solid and hollow shapes
- Easy die change vis-a- vis roll changes in case of conventional
hot rolling
- Economy
There are often dramatic savings, that are made in extrusions as
compared to other fabricating methods like weldments, forgings, brake
forming and machining.
- Practicality in short run
- Small quantities are also relatively feasible
- Lesser quantity for minimum run
As compared to others, minimum quantity for extrusion needs
- For carbon steel 2000 pounds or 900 kg
- For stainless steel 1000 pounds or 450 kg
)
